I've always admired the look of these fine little guns' outward beauty, but have never seen any drawings or photos of them apart. Was wondering if any of you fine people had any or could point me in the right direction.

The JACO derringer doesn't look like your typical twin stack derringer, but it is about as simple a design as you are going to find for a functioning *legal* firearm. Several guys on the Roderus gunsmithing forums have posted finished examples that are very impressive. Here are a couple of threads to check out...